Title:
VALVE DEVICE FOR RELEASING GAS AND PACKAGING BODY HAVING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/075758
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a valve device for releasing a gas formed in a simple structure and having excellent sealability. [MEANS FOR SOLVING PROBLEMS] This valve device (2) comprises a thick-walled base body (3) having a vent hole (8), a valve element (4) stacked on the base body (3) and forming a flow passage (9), and a cover body (5) holdingly retaining the valve element (4). The valve element (4) is formed in a slender shape and disposed on the base body (3) so as to cover at least the upper part of the vent hole (8). A blank part (base body exposed part) (3a) in which the valve element (4) is not disposed is present on the upper surface of the base body (3), and the cover body (5) is adhered to the valve element (4) while covering the entire surface of the blank part (3a) of the base body (3). The valve element (4) is formed of a resin film with a self-adhesiveness such as a lap film for packaging food, can easily discharge gas, and after the gas is discharged, rapidly fits to the base body or the cover body to maintain a fitted state so as to secure high sealability.
Inventors:
HIRAMATSU SHIGEKI (JP)
Application Number:
PCT/JP2006/300541
Publication Date:
July 20, 2006
Filing Date:
January 17, 2006
Export Citation:
Assignee:
NISHIKI TRADING CO LTD (JP)
KUREHA CORP (JP)
HIRAMATSU SHIGEKI (JP)
KUREHA CORP (JP)
HIRAMATSU SHIGEKI (JP)
International Classes:
B65D81/26; A23F5/10; A61J1/10; B65D30/24; B65D33/01; F16K24/04
Foreign References:
| JPS63152551A | 1988-06-25 | |||
| JPH02205560A | 1990-08-15 | |||
| JPH07291306A | 1995-11-07 |
Attorney, Agent or Firm:
Hasegawa, Yoko (Horiguchi Bldg. 2-3, Nihombashi Ningyocho, 2-chom, Chuo-ku Tokyo 13, JP)
Download PDF: